Calculate the mass of ammonium sulfide (nh4)2s in 3.00 l of a 0.020 m solution

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

What will most likely happen when two bromine atoms bond together?

Stage in which a typical star has completely stopped fusion